Samsung SyncMaster P42HN User manual
SERVICE
Manual
PDP-MONITOR
Chassis: D84A(NP_FHD)_Kailas
Model : PH42KLTLBC/XF
PDP-MONITOR CONTENTS
1. Precaution
2. Product Specification
3. Disassembly & Reassembly
4. Troubleshooting
5. Exploded View & Part List
6. Wiring Diagram
7. Schematic Diagram
Refer to the service manual in the GSPN (see the rear cover) for the more information.
P42HN
This Service Manual is a property of Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law.
GSPN (Global Service Partner Network)
Area Web Site
North America service.samsungportal.com
Latin America latin.samsungportal.com
CIS cis.samsungportal.com
Europe europe.samsungportal.com
China china.samsungportal.com
Asia asia.samsungportal.com
Mideast & Africa mea.samsungportal.com
© Samsung Electronics Co.,Ltd. Feb. 2009
Printed in Korea
AA82-05693A
Table of Contents
1. Precaution
1-1 Safety Precautions ......................................................................................................................................................1-1
1-2 Servicing Precautions..................................................................................................................................................1-3
1-3 Static Electricity Precautions .......................................................................................................................................1-4
1-4 Installation Precautions ...............................................................................................................................................1-5
2. Product Specification
2-1 Product Specification...................................................................................................................................................2-1
2-2 Specifications Analysis ................................................................................................................................................2-2
2-3 Accessories .................................................................................................................................................................2-3
3. Disassembly & Reassembly
3-1 Overall Disassembly & Reassembly............................................................................................................................3-1
4. Troubleshooting
4-1 Troubleshooting ...........................................................................................................................................................4-1
4-2 Adjustment...................................................................................................................................................................4-15
4-3 Upgrade.......................................................................................................................................................................4-27
5. Exploded View & Part List
5-1 PH42KLTLBC/XF Exploded View................................................................................................................................5-1
5-2 PH42KLTLBC/XF Service Item....................................................................................................................................5-3
6. Wiring Diagram
6-1 Overall Wiring ..............................................................................................................................................................6-1
7. Schematic Diagram
7-1 Circuit Description .......................................................................................................................................................7-1
7-2 Schematic Diagram .....................................................................................................................................................7-3
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Exploded View & Part List
Samsung Electronics
5-1
5. Exploded View & Part List
5-1 PH42KLTLBC/XF Exploded View
T0003
M0112
T0022
T0061
T0456
M0150
M0146
M0149
T0152
T0175
T0044
T0448
T0312 M0014
T0175
FT532
M0013
Exploded View & Part List
Samsung Electronics 5-2
Loc. No. Code No. Description Specification Q’ty SA/SNA Remark
FT532 2901-001530 FILTER-EMI AC LINE 250V,6A,0.15uF/1000pF 1 S.A
M0013 BN96-02101E ASSY COVER P-REAR 42M8,Kailas,SECC,T0.5, 1 S.A
M0014 BN94-02030A ASSY PCB MISC-MAIN PH42KLTLBC/ZA 1 S.A
M0112 BN63-04964A COVER-FRONT 42M8(P42H),HIPS,-,-,-,HB,-,B 1 S.N.A
M0146 BN96-02102B ASSY BRACKET P-FILTER SIDE -,42M5,-,AL T 2 S.N.A
M0149 BN96-02104B ASSY BRACKET P-FILTER TOP -,42M5,-,AL T1 1 S.N.A
M0150 BN96-02103C ASSY BRACKET P-FILTER BOTTOM 42M8,AL,T1. 1 S.N.A
T0003 BN96-08408A ASSY COVER P-FRONT 42M8(P42H),,HIPS,HB,B 1 S.A
T0022 BP64-00045E KNOB CONTROL 42M5,ABS,HB,BKM-1326R1 1 S.N.A
T0044 BN96-08657A ASSY PDP MODULE P PL42AB036B,42HD W3,Nor 1 S.A
T0061 BN64-00074B WINDOW-REMOCON 42P3S,PMMA,,,,,,CLEAR 1 S.N.A
T0152 BN96-08128D ASSY BRACKET P-WALL RIGHT 42M8,SECC,T2.0 1 S.N.A
T0175 BN96-06822F ASSY SPEAKER P 8ohm,Kailas,LFD 42”,5W,2p 1 S.A
T0175 BN96-06822G ASSY SPEAKER P 8ohm,Kailas,LFD 42”,5W,2p 1 S.A
T0312 BN96-02130K ASSY COVER P-REAR SUB 42M8,Kailas,SECC T 1 S.A
T0448 BN96-08130C ASSY BRACKET P-WALL LEFT 42M8,SECC,T2.0 1 S.N.A
T0456 BN67-00174A GLASS-FILTER EMI 42” with Black Ceramic, 1 S.A
Exploded View & Part List
Samsung Electronics
5-3
5-2 PH42KLTLBC/XF Service Item
※
This is the list which is available to repair the real material at the time of service.
Loc. No. Code No. Description Specification Q’ty Remark
M0013 BN96-02101E ASSY COVER P-REAR 42M8,Kailas,SECC,T0.5, 1
M0014 BN94-02030A ASSY PCB MISC-MAIN PH42KLTLBC/ZA 1
M0114 BN39-00244G CBF SIGNAL D-sub cable,15P/15P,20276N,15 1
M0154 BN96-06760A ASSY PDP P-Y-MAIN BUFFER PL42AX030A,42HD 1
M2893 BN39-00984D LEAD CONNECTOR Kailas,UL1007#26,16p,100m 1
M2893 BN39-01088A LEAD CONNECTOR Kailas,UL1007#26,UL1007 # 1
M2893 BN39-01090A LEAD CONNECTOR Kailas,UL1007#26,UL1007 # 1
M2893 BN39-01092A LEAD CONNECTOR Kailas,UL1007#22,4p,150mm 1
M2893 BN39-01139A LEAD CONNECTOR Kailas,UL20276#30,UL20276 1
T0003 BN96-08408A ASSY COVER P-FRONT 42M8(P42H),,HIPS,HB,B 1
T0037 BN96-06761A ASSY PDP P-LOGIC MAIN PL42AX030A,42HD W3 1
T0038 BN96-06762A ASSY PDP P-ADDRESS E-BUFFER PL42AX030A,4 1
T0039 BN96-06763A ASSY PDP P-ADDRESS F-BUFFER PL42AX030A,4 1
T0044 BN96-08657A ASSY PDP MODULE P PL42AB036B,42HD W3,Nor 1
T0045 BN96-06757A ASSY PDP P-X-MAIN BOARD PL42AX030A,42HD 1
T0045 BN96-06758A ASSY PDP P-X-MAIN BUFFER PL42AX030A,42HD 1
T0074 BN59-00752A REMOCON LH40MG,TM-96B,GC49C501G0,44,BLAC 1
T0175 BN96-06822F ASSY SPEAKER P 8ohm,Kailas,LFD 42”,5W,2p 1
T0175 BN96-06822G ASSY SPEAKER P 8ohm,Kailas,LFD 42”,5W,2p 1
T0262 BN96-06759A ASSY PDP P-Y-MAIN BOARD PL42AX030A,42HD 1
T0764 BN44-00206A SMPS-PDP TV W3 PDP SMPS,SEM,AC/DC,406.6W 1
T0909 BN94-01991G ASSY PCB MISC-NETWORK LH40MGTL 1
BN44-00230A SMPS-LCD MOINITOR SUB PN098STS-VF,POWER, 1
Precaution
Samsung Electronics 1-1
1. Precaution
To avoid possible damage, electric shocks or exposure to radiation, follow the instructions below with regard to safety,
installation, service and ESD.
1-1 Safety Precautions
1. Make sure all protective devices are properly installed including non-metallic handles and compartment covers when installing or
re-installing the chassis or chassis assemblies.
2. Make sure that no gaps exist between the cabinets for children to insert their fingers in to prevent children from receiving electric
shocks. Gaps mentioned above include ventilation holes of a too great magnitude between the PDP module and the cabinet
mask, and the improper installation of the rear cabinet.
Errors may occur when the resistance is below 1.0
㏁
or over 5.2
㏁
. In these cases, make sure that the device is repaired before
sending it back to the customer.
3. Check for Electricity Leakage (AC Leakage Test)
Warning: Do not use an insulated transformer for checking the
leakage. Use only those current leakage testers or mirroring
systems that comply with ANSIC 101.1 and the Underwriter
Laboratory’s specifications (UL1410, 59.7).
4. A high voltage is maintained within the specified limits using safety parts, calibration and tolerances. When voltage exceeds the
specified limits, check each special part.
5. Warning for Engineering Changes:
Never make any changes or additions to the circuit design or the internal part for this product.
Ex: Do not add any audio or video accessory connectors. This might cause physical damage. Furthermore, any changes or
additions to the original design/engineering will invalidate the warranty.
6. Warning - Hot Chassis:
Some Monitor chassis are directly connected to one end of the AC power cord for electrical reasons.
Without insulated transformers, the product can only be repaired safely when the chassis is connected to the earthed end of the
AC power source.
To make sure the AC power cord is properly connected, follow the instructions below. Use the voltmeter to measure the voltage
between the chassis and the earthed ground. If the measurement is over 1.0V, unplug the AC power cord and change the
polarity before reinserting it. Measure the voltage between the chassis and the ground again.
7. Some Monitor chassis are shipped with an additional secondary grounding system. The secondary system is adjacent to the AC
power line. These two grounding systems are separated in the circuit using an unbreakable/unchangeable insulation material.
8. When any parts, material or wiring appear overheated or damaged, replace them with new regular ones immediately.
When any damage or overheating is detected, correct this immediately and make a regular check of possible errors.
DEVICE
UNDER
TEST
LEAKAGE
CURRENT
TESTER
TEST ALL EXPOSED
METAL SURFACES
2-WIRE CORD
ALSO TEST WITH
PLUG REVERSED
(USING AC ADAPTER
PLUG AS REQUIRED)
EARTH
GROUND
(READING
SHOULD NOT BE
ABOVE 0.5mA)
Precaution
1-2 Samsung Electronics
9. Check for the original shape of the lead, especially that of the antenna wiring, any sharp edges, the AC power and the high
voltage power. Carefully check if the wiring is too tight, incorrectly placed or loose. Never change the space between the part and
the printed circuit board. Check the AC power cord for possible damages. Keep the part or the lead away from any heat-emitting
materials.
10. Safety Indication:
Some electrical circuits or device related materials require special attention to their safety features, which cannot be viewed by
the naked eye. If an original part is replaced with another irregular one, the safety or protective features will be lost even if the
new one has a higher voltage or more watts.
Critical safety parts should be bracketed with ( , ). Use only regular parts for replacements (in particular, flame resistance
and dielectric strength specifications). Irregular parts or materials may cause electric shock or fire.
Precaution
Samsung Electronics 1-3
1-2 Servicing Precautions
Warning 1: First carefully read the “Safety Instruction” in this service manual.
When there is a conflict between the service and the safety instructions, follow the safety instruction at all times.
Warning 2: Any electrolytic capacitor with the wrong polarity will explode.
1. The service instructions are printed on the cabinet, and should be followed by any service personnel.
2. Make sure to unplug the AC power cord from the power source before starting any repairs.
(a) Remove or re-install parts or assemblies.
(b) Disconnect the electric plug or connector, if any.
(c) Connect the test part in parallel with the electrolytic capacitor.
3. Some parts are placed at a higher position than the printed board. Insulated tubes or tapes are used for this purpose.
The internal wiring is clamped using buckles to avoid contact with heat emitting parts. These parts are installed back to their
original position.
4. After the repair, make sure to check if the screws, parts or cables are properly installed. Make sure no damage is caused to the
repaired part and its surroundings.
5. Check for insulation between the blade of the AC plug and that of any conductive materials (i.e. the metal panel, input terminal,
earphone jack, etc).
6. Insulation Check Process: Unplug the power cord from the AC source and turn the switch on. Connect the insulating resistance
meter (500v) to the AC plug blade.
The insulating resistance between the blade of the AC plug and that of the conductive material should be more than 1
㏁
.
7. Any B+ interlock should not be damaged.
If the metal heat sink is not properly installed, no connection to the AC power should be made.
8. Make sure the grounding lead of the tester is connected to the chassis ground before connecting to the positive lead.
The ground lead of the tester should be removed last.
9. Beware of risks of any current leakage coming into contact with the high-capacity capacitor.
10. The sharp edges of the metal material may cause physical damage, so protect yourself by wearing gloves during the repair.
11. Due to the nature of plasma display panels, partial after-images may appear if a still picture is displayed on the screen for a long
period of time.
This is caused by brightness deterioration due to the storage effect of the panel, and to prevent this from happening, we
recommend that the brightness and contrast are reduced.
(e.g.) Contrast: 25, Brightness: 50
Precaution
1-4 Samsung Electronics
1-3 Static Electricity Precautions
1. Some semi-conductive (“solid state”) devices are vulnerable to static electricity. These devices are known as ESD. ESD
includes the integrated circuit and the field effect transistor. To avoid any materials damage from electrostatic shock, follow the
instructions described below.
2. Remove any static electricity from your body by connecting the earth ground before handling any semi-conductive parts or
assemblies. Alternatively, wear a dischargeable wrist-belt.
(Make sure to remove any static electricity before connecting the power source - this is a safety instruction for avoiding electric
shock)
3. Remove the ESD assembly and place it on a conductive surface such as aluminum foil to prevent accumulating static electricity.
4. Do not use any Freon-based chemicals. Such chemicals will generate static electricity that causes damage to the ESD.
5. Use only grounded-tip irons for soldering purposes.
6. Use only anti-static solder removal devices.
Most solder removal devices do not support an anti-static feature. A solder removal device without an anti-static feature can store
enough static electricity to cause damage to the ESD.
7. Do not remove the ESD from the protective box until the replacement is ready. Most ESD replacements are covered with lead,
which will cause a short to the entire unit due to the conductive foam, aluminum foil or other conductive materials.
8. Remove the protective material from the ESD replacement lead immediately after connecting it to the chassis or circuit
assembly.
9. Take extreme caution in handling any uncovered ESD replacements. Actions such as brushing clothes or lifting your leg from the
carpet floor can generate enough static electricity to damage the ESD.
CAUTION
These servicing instructions are for use by qualified
service personnel only.
To reduce the risk of electric shock do not perform any
servicing other than that contained in the operating
instructions unless you are qualified to do so.
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